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Optically induced charge storage and current generation in InAs quantum dots
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS).ORCID iD: 0000-0001-5027-1456
Halmstad University, School of Business and Engineering (SET), Mechanical Engineering and Industrial Design (MTEK).ORCID iD: 0000-0002-4826-019X
Division of Solid State Physics, Lund University, Lund, Sweden.
Division of Solid State Physics, Lund University, Lund, Sweden.
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2002 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 65, no 7, p. 0733041-0733044Article in journal (Refereed) Published
Abstract [en]

We report on optically induced charge storage effects and current generation in self-assembled InAs quantum dots embedded in an InP matrix. Illumination with photons of energy higher than about 0.86 eV efficiently loads the dots with a maximum of about 1 hole/dot. The spectral response at lower photon energy is strongly enhanced at elevated temperatures. We present a detailed balance model for the dots and discuss the thermally assisted optical excitation processes pertinent to hole accumulation. We also show that these processes make the dots act as nanometer-scaled temperature-dependent current generators.

Place, publisher, year, edition, pages
American Physical Society , 2002. Vol. 65, no 7, p. 0733041-0733044
Keywords [en]
Quantum dots, Electronics, Microelectronics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:hh:diva-1838DOI: 10.1103/PhysRevB.65.073304ISI: 000174030900011Scopus ID: 2-s2.0-17444452789Local ID: 2082/2233OAI: oai:DiVA.org:hh-1838DiVA, id: diva2:239056
Available from: 2008-09-03 Created: 2008-09-03 Last updated: 2018-04-03Bibliographically approved

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Pettersson, HåkanBååth, Lars B.

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Pettersson, HåkanBååth, Lars B.
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Halmstad Embedded and Intelligent Systems Research (EIS)Mechanical Engineering and Industrial Design (MTEK)
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Physical Review B. Condensed Matter and Materials Physics
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Citation style
  • apa
  • harvard1
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  • vancouver
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More styles
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  • de-DE
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  • Other locale
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Output format
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